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GJ 508.2 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/GJ 508.2 b

Confirmed exoplanet · Gas Giant

GJ 508.2 b

Orbiting GJ 508.2

Discovered in 2025 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic gas giant catalog artwork; not a direct image of GJ 508.2 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,025
Method: Radial Velocity
Radius: Not reported by the NASA Exoplanet Archive
Mass: 587.982553 M⊕
Orbit: 5,300 days
Distance: 16.6374 pc

Planet profile

Orbit and physical properties

Orbital period: 5,300 days
Semi-major axis: 4.85 AU
Eccentricity: 0.27
Radius: Not reported by the NASA Exoplanet Archive
Mass: 587.982553 Earth masses
Mass provenance: Msini
Density: Not reported by the NASA Exoplanet Archive
Equilibrium temperature: 59.3 K
Insolation: 0.0025 Earth flux

Host system

Star and system properties

Host star: GJ 508.2
Stars in system: 1
Known planets in system: 1
Spectral type: M1.0 V
Stellar temperature: 3,720 K
Stellar radius: 0.53 R☉
Stellar mass: 0.54 M☉
Stellar metallicity: -0.15 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 16.6374 parsecs
Right ascension: 13h20m58.65s
Declination: +34d16m39.59s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,025
Publication date: 2025-08
Discovery locale: Ground
Facility: Calar Alto Observatory
Telescope: 3.5 m telescope
Instrument: CARMENES
NASA Exoplanet Archive: Open composite record ↗

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